Samadhan P. Pawar, Laxman S. Walekar, Uttam R. Kondekar, Dattatray B. Gunjal, Anil H. Gore, Prashant V. Anbhule, Shivajirao R. Patil, Govind B. Kolekar. CdS nanocrystals as fluorescent probe for detection of dolasetron mesylate in aqueous solution:Application to biomedical analysis[J]. Journal of Pharmaceutical Analysis, 2016, 6(6): 410-416.
Citation:
Samadhan P. Pawar, Laxman S. Walekar, Uttam R. Kondekar, Dattatray B. Gunjal, Anil H. Gore, Prashant V. Anbhule, Shivajirao R. Patil, Govind B. Kolekar. CdS nanocrystals as fluorescent probe for detection of dolasetron mesylate in aqueous solution:Application to biomedical analysis[J]. Journal of Pharmaceutical Analysis, 2016, 6(6): 410-416.
Samadhan P. Pawar, Laxman S. Walekar, Uttam R. Kondekar, Dattatray B. Gunjal, Anil H. Gore, Prashant V. Anbhule, Shivajirao R. Patil, Govind B. Kolekar. CdS nanocrystals as fluorescent probe for detection of dolasetron mesylate in aqueous solution:Application to biomedical analysis[J]. Journal of Pharmaceutical Analysis, 2016, 6(6): 410-416.
Citation:
Samadhan P. Pawar, Laxman S. Walekar, Uttam R. Kondekar, Dattatray B. Gunjal, Anil H. Gore, Prashant V. Anbhule, Shivajirao R. Patil, Govind B. Kolekar. CdS nanocrystals as fluorescent probe for detection of dolasetron mesylate in aqueous solution:Application to biomedical analysis[J]. Journal of Pharmaceutical Analysis, 2016, 6(6): 410-416.
Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, Maharashtra, India
Funds:
We gratefully acknowledge the UGC, New Delhi, India for providing the major research project
Department of Science and Technology (DST), New Delhi, India for financial assistance to the Department of Chemistry, Shivaji University, Kolhapur, India under FIST level-I Program
A simple and straightforward method for the determination of dolasetron mesylate (DM) in aqueous solution was developed based on the fluorescence quenching of 3-Mercaptopropionic acid (MPA) capped CdS quantum dots (QDs). The structure, morphology, and optical properties of synthesized QDs were characterized by using UV-Vis absorption spectroscopy, fluorescence spectroscopy, transmission electron microscopy (TEM) and dynamic light scattering (DLS) measurements. Under the optimum conditions, the MPA-CdS QDs fluorescence probe offered good sensitivity and selectivity for detecting DM. The probe provided a highly specific selectivity and a linear detection of DM in the range of 2–40 μg/mL with detection limit (LOD) 1.512 μg/mL. The common excipients did not interfere in the proposed method. The fluorescence quenching mechanism of CdS QDs is also discussed. The developed sensor was applied to the quantification of DM in urine and human serum sample with satisfactory results.
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